CN203312730U - High-voltage switchgear cable-wiring wall-bushing connection structure - Google Patents
High-voltage switchgear cable-wiring wall-bushing connection structure Download PDFInfo
- Publication number
- CN203312730U CN203312730U CN2013203426242U CN201320342624U CN203312730U CN 203312730 U CN203312730 U CN 203312730U CN 2013203426242 U CN2013203426242 U CN 2013203426242U CN 201320342624 U CN201320342624 U CN 201320342624U CN 203312730 U CN203312730 U CN 203312730U
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- China
- Prior art keywords
- wall bushing
- voltage switchgear
- major loop
- contact
- bushing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a high-voltage switchgear cable-wiring wall-bushing connection structure. A stepped through hole is arranged inside a conducting rod embedded in a wall bushing. The wall bushing is fastened with a conductive member in a major loop through a socket head cap screw in the stepped through hole. A thin red copper adjustment sheet is arranged at the contact surface of the wall bushing and the conductive member in the major loop. Radial wall-through angle of the wall bushing can be easily achieved. Meanwhile, good contact of each contact surface can be guaranteed, thus reducing electric contact surface, being beneficial to reduce loop resistance and decreasing temperature rise.
Description
Technical field
The utility model relates to a kind of high voltage switchgear cable connection element, relates in particular to a kind of high voltage switchgear cable connection wall bushing syndeton.
Background technology
The design of cable connection wall bushing will meet the requirements such as insulation, ampacity, short circuit current, peak current, temperature rise, intensity, between each connector, will contact good and certain contact be arranged to guarantee that electrical property is good, what the air-tightness requirement was arranged simultaneously will guarantee good seal.
As shown in Figure 1, in prior art, adopt the design of cable connection wall bushing (outlet cone), outlet casing tube is connected with the switch major loop by transition piece (switching bolt), first transition piece and major loop or sleeve pipe is fastening, then outlet casing tube and major loop is fastening.
Above-mentioned prior art one have at least a following shortcoming:
When many cable connection wall bushings were installed, upwards there was the angle requirement in footpath, during installation, was difficult to guarantee simultaneously that each part connects good and angle requirement, the more difficult realization of mounting process;
Because transition piece is arranged, contact-making surface is more, is unfavorable for control loop resistance and heating;
Be difficult to guarantee through walls and contact simultaneously well with the major loop contact-making surface, can only guarantee that generally a face contact is good, when contact-making surface through walls had seal request, drawback was more outstanding.
The utility model content
The purpose of this utility model is to provide a kind of high voltage switchgear cable connection wall bushing syndeton good, that major loop resistance is little that contacts.
The purpose of this utility model is achieved through the following technical solutions:
The syndeton of high voltage switchgear cable connection wall bushing of the present utility model, the embedded conducting rod inside of described wall bushing is provided with ladder hole, by soket head cap screw, that wall bushing and major loop electric-conductor is fastening in ladder hole.
By the technical scheme that above-mentioned the utility model provides, can be found out, the syndeton of the high voltage switchgear cable connection wall bushing that the utility model embodiment provides, because inside is fastening by wall bushing and major loop by soket head cap screw, the wall bushing footpath angle through walls that makes progress is met; Owing to having reduced transition piece, reduced electric interface, be conducive to reduce major loop resistance, reduced temperature rise.
The accompanying drawing explanation
Fig. 1 is the structural representation of high voltage switchgear cable connection wall bushing syndeton of the prior art;
The structural representation of the high voltage switchgear cable connection wall bushing syndeton that Fig. 2 provides for the utility model embodiment.
In figure: 1, the contact-making surface of wall bushing and metope, 2, the major loop electric-conductor, 3, the switching bolt, 4, the embedded conducting rod of wall bushing, 5, silicone rubber sleeve, 6, the wall bushing insulating barrier, 7, sealing ring, 8, soket head cap screw, 9, thin red copper trimmer.
Embodiment
Below will be described in further detail the utility model embodiment.
The syndeton of high voltage switchgear cable connection wall bushing of the present utility model, its preferably embodiment be:
The embedded conducting rod inside of described wall bushing is provided with ladder hole, by soket head cap screw, that wall bushing and major loop electric-conductor is fastening in ladder hole.
The contact-making surface place of described wall bushing and major loop electric-conductor is provided with thin red copper trimmer.
The contact-making surface place of described wall bushing and metope is provided with sealing ring.
The utility model has solved the problem that when the cable connection wall bushing was installed, footpath upwards had angle to require, and has realized that wall bushing meets its setting angle while installing; For the shortcoming that has transition piece, the utility model has been cancelled transition piece; For being difficult to guarantee through walls, contact simultaneously good drawback with the major loop contact-making surface, the utility model adopts thin red copper adjusting pad mode, guarantees above-mentioned two contact-making surfaces good contact simultaneously.
Specific embodiment:
As shown in Figure 2, cancel transition piece, the cable connection wall bushing directly is connected with major loop; The conducting rod that wall bushing is embedded is designed to the ladder hole structure, inner by soket head cap screw, that wall bushing and major loop is fastening, during installation, can first meet radially upper angle requirement of wall bushing, and then trip bolt gets final product; At wall bushing, be connected contact-making surface place design of thin red copper trimmer with major loop, regulate the connection tightness of contact-making surface.
During concrete the installation, at wall bushing, be connected as required contact-making surface place design of thin red copper trimmer with major loop, sleeve pipe contact-making surface through walls contacts good with the switch cubicle installed surface in the situation that guarantee, the connection tightness of regulating contact-making surface by the number of regulating the red copper pad, until contact is good, in above process, can first meet radially upper angle requirement of wall bushing simultaneously, and then trip bolt gets final product.
The utility model is mainly used in the cable connection mode, also can be used for hard bus connected mode, and the beneficial effect brought is as follows:
Because inside is fastening by wall bushing and major loop by soket head cap screw, the wall bushing footpath angle through walls that makes progress is met; Owing to there being thin copper sheet to regulate, can guarantee simultaneously that each contact-making surface contact is good; Owing in design, having reduced transition piece, reduced electric interface, be conducive to reduce loop resistance, reduced temperature rise.
The above; it is only preferably embodiment of the utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.
Claims (3)
1. the syndeton of a high voltage switchgear cable connection wall bushing, is characterized in that, the embedded conducting rod inside of described wall bushing is provided with ladder hole, by soket head cap screw, that wall bushing and major loop electric-conductor is fastening in ladder hole.
2. the syndeton of high voltage switchgear cable connection wall bushing according to claim 1, is characterized in that, the contact-making surface place of described wall bushing and major loop electric-conductor is provided with thin red copper trimmer.
3. the syndeton of high voltage switchgear cable connection wall bushing according to claim 1 and 2, is characterized in that, the contact-making surface place of described wall bushing and metope is provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203426242U CN203312730U (en) | 2013-06-14 | 2013-06-14 | High-voltage switchgear cable-wiring wall-bushing connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203426242U CN203312730U (en) | 2013-06-14 | 2013-06-14 | High-voltage switchgear cable-wiring wall-bushing connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203312730U true CN203312730U (en) | 2013-11-27 |
Family
ID=49618905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203426242U Expired - Lifetime CN203312730U (en) | 2013-06-14 | 2013-06-14 | High-voltage switchgear cable-wiring wall-bushing connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203312730U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954806A (en) * | 2014-04-25 | 2014-07-30 | 国家电网公司 | Device for testing insulation of +/-1100kV direct current wall bushing |
| CN109038467A (en) * | 2018-07-02 | 2018-12-18 | 国网浙江慈溪市供电有限公司 | A kind of quick transfer box of 0.4kV cable |
-
2013
- 2013-06-14 CN CN2013203426242U patent/CN203312730U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954806A (en) * | 2014-04-25 | 2014-07-30 | 国家电网公司 | Device for testing insulation of +/-1100kV direct current wall bushing |
| CN109038467A (en) * | 2018-07-02 | 2018-12-18 | 国网浙江慈溪市供电有限公司 | A kind of quick transfer box of 0.4kV cable |
| CN109038467B (en) * | 2018-07-02 | 2023-11-28 | 国网浙江慈溪市供电有限公司 | 0.4kV cable quick transfer box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160308 Address after: 300301 Binhai hi tech Zone, Binhai New Area, Tianjin, 10 Tai Tay Road Patentee after: TIANJIN HEZONG POWER EQUIPMENT Co.,Ltd. Address before: 100085 Jiahua building, 3rd Street, Beijing, Haidian District, D1211 Patentee before: Beijing Hezong-Kolwell Power Engineering Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |